Prince William and Kate Middleton formally registered the royal baby's birth Friday, the Palace announced.
In a statement and photo posted on Twitter, Clarence House confirmed Prince George name is officially "His Royal Highness Prince George Alexander Louis of Cambridge."
In the signed document, William and Kate had to provide their full name and occupations.
William is listed as "His Royal Highness Prince William Arthur Philip Louis Duke of Cambridge" while Kate’s name is "Catherine Elizabeth Her Royal Highness The Duchess of Cambridge."
The official last name of William is Mountbatten-Windsor. But Will didn't put surname for himself nor Prince George on the birth certificate as it is not necessarily required.
According to the British Monarchy official website, members of the Royal Family who are entitled to the style and dignity of HRH Prince or Princess do not need a surname.
William listed their occupations as "Prince and Princess of the United Kingdom," and the couple's usual address as "Kensington Palace".
The pair was listed as "Prince" and "Princess" despite the fact that their official titles are the Duke and Duchess of Cambridge, respectively.
Only Prince William signed the registry, not Kate, as it requires only one parent's signature. And the Prince just put "William" in the signature.
Prince George of Cambridge, was born on July 22 in London's St. Mary's Hospital. He is now third in line to the British throne, following his grandfather and father.
